Multiple socket



July 10, 1928. 1,676,435

l. F. GILES MULTIPLE SOCKET Filed June 15, 1925 2 sheets-sheen 1 July 1o, 1928. 1,676,435

l. F. GILES MULTIPLE SOCKETA Filed June l5, 1925 2 Sheets-Sheet 2 Patented .hay ic, reas. l 1,676,435

Unirse stars errar Fries.

ISAAC F. GILES, 'OE YOANKERS, YORK, ASSIGNOR TO ILEITE ELECTRIC MANU-v FACTURING CORPORATION, OF T'UCKAHOE, NEW YORK, A CORJPORACLONV OF NEW YORK.

MULTIPLE SOCKET.

`Application led .Tune 15,711925. Serial No. 37,1029..

This invention pertains to multiple socket shelly 21 andl a central contact 22. Similarly electric fixtures, particularly to a two or the electrical outlet in the casing 10 embod-v I three way socket where the casing comprises ies a threaded shell 23 and a central con-v molded electrical insulating material. One tact 24. F

5 of the dilliculties arising in connection with In accordance with common practice,y I

the manufacture ofsuch fixtures isthe nemake ythe inlet shell 14 adapted to carry curcessity for soldering the connections within rent of one polarity vand theA central inlet the casing so as to provide a Vrigidconstruc- Contacty 16 adapted to carry current of opV f tion and to insure proper electrical'connecposite polarity. To connect the contact e() l tion even though the fixture is subjected to members in the respective outlets tothe inlet vibration when in use. c contacts, I employ a bracket 25 which briefly The principal object of the present invenembodies a strip of Acurrent carrying mate tion is the provision of a multiple socket lixrial, which is so shaped that all of the cenf 'ture which may be readily assembled withtral contact members can be maintained in ,65

l out the necessity of soldering any vof the curplopenposition by a threaded connection rent carrying members within the casing.l therewith. .f

The preferred form of carrying out my I have shown the bracket as having parinvention is shown in the drawings wherein alle-l faces 26 and'27 which are normal to Fig. 1 is a side elevation of a three-way plug the axis of the barrel 10, and also yas having 7o 20 socket embodying my invention; Fig.. 2 is -a aces'28 and 29 whichare-normal tothe axes f transverse vertical section taken on a plane of the casings 17 andl respectively. Each indicated on'the line 2 2v in Fig. 1.; Fig. 3 of the faces on the bracket has anlopening is a longitudinal vertical section through .a for receiving a threaded member, toconnect device taken on a plane by the line 3 3 in the central contact and maintain it in ad- 75 Fig. 2; Fig. 4 is a side elevation partly in juste'd position. For example, the central vsection showing the relative arrangement of inlet contact 15 embodies the head of a screw the cooperating parts, and Fig. 5 is a per- 30 which engages Vavthreaded opening 31 in spective view of a connecting bracket emthe face 27.l Similarly, the faces 26 and 28 ployed -with my invention. and 29 have .threaded openings 32, 33 and Q y 30 My invention is shown'in connection with 34 for receiving the threaded members 3.5, a three-way plug socket having a central 36 and 37 respectively. The members 35, casing 10 in the nature of a barrel compris-v 36 and 37 may function to hold the central ing electrical insulating material, for excontacts 24, 2O and 22 respectively in proper ample Bakelite. The barrel is open at the position. Thus all` ofthe centr-al contacts 55 top and bottom 'and has lateral openings are electricallyy connected together. y e shown at 11 and 12 respectively. The up- The inlet contact shell 14 may be'electriper end of the barrel may be closed by a cally connected to the other contact shells by head 13 which may be made of Bakelite or means of a member 40 which is shown as a other electrical insulating material.l The bar, one end of which is riveted to the shell 90 40 head 13 has a threaded shell 14 and a cen n 23 and theV other endY of which projectstral contact 15 which provide the electrical vthrough a slot 41 in the plug 13 whereit is inlet to the lixture. The central contact 15 engaged by the shell 14 when placed in. a'smay be insulated from the shell by a layer of sembled position. f electrical insulating material 16. To provide an electrical connection be- 95 Adjacent the openings 11 and 12, I have tween the shells 19 and 21, I have shown shown laterally extending casings 17 and connecting strips 42 and 43 which are per- 18 respectively, which provide independent manently fastened as by riveting, to the electrical outlets. The electrical outlet in shells 19 and 21 respectively, and which are the casing 17 comprises a threaded shell 19 bent intermediately to provide a friction 100 and a central contact 20. The electrical outcontact with the shell 23.v Thus the shell 14 let of the casing 18 comprises a threaded is lelectrically connected with the shell 19,

21 and 23 respectively. As shown in Fig. 2, the member 40 is disposed at one side of the bracket 29 wherefore the shells are electri cally insulated from the central contacts.

To assemble a multiple socket iiXture made in accordance with my invention, the head 13 preferably has the shell 14 mounted'thereon and thebracket 29 attached thereto by a ings together" at these points. The head 18 with the attached bracket and shell 23 is now inserted into the casing 10. The walls ofthe shell 23 engage the strips 42 and 43 which exert sufficient pressure to make a good electrical connection. Then the shells 19 and 21 are locked in position by the threaded securing members 3G, 37'screwing into the bracket 29. These screws also position the central contacts 20 and 22 respectively. The central contacts are suitably insulated from the shells by electrical insulating washers 51. In the case of the central shell 23 an inner insulating washer 50 is also employed toprevent contact between the shell and bracket.`

From the foregoing description and the drawings, it will be evident that I have provided a multiple socket fixture wherein the electrical andmechanical connections may be made without the use of solder and still a very 'firmly secured device obtained. "While I have illustrated my invention only in connection with a three-way outlet, it will be understood that similar parts Y`may be used in .assembling a two-way outlet by making the central casing with only' one side opening and omitting altogether one of the side casings and its enclosed parts.

Having thus described my invention, I claim: Y l

1. A multiple socket comprising an insulating cylindrical sleeve open at its opposite ends and having an opening in its cylindrical surface, a second cylindrical sleeve separate from the first, lying at an angle thereto and having therend of its wall con caved to engage the cylindrical surface of the first sleeve about the opening therethrough, metallic shells in the free end portions of the two sleeves, a plug at the .other end of the first mentioned sleeve, and means within the sleeves for holding the shells and other contacts in place and for holding the two sleeves together.

2. In a device of the character described, the combination of two separable cylindrical sleeves, one cut off concavely to partially embrace the other about an opening through the wall of the latter, a plug at the end of the straight sleeve, a bracket within the straight sleeve secured to theplug by central screw forn'iing one of the electric conductors, a pair of metallic shells inthe two sleeves having Banged inner ends:r` insulating washers .seating on the flanges and central contact screws engaging the washers andV screwing into the bracket whereby the sleeves and plug are held together and the shellsl and contacts are held within the sleeves.

31A multiple sockety compri-sing a cylindrical sleeve of insulating material open at its opposite ends and having a hole through its side wall, a branc'h sleeve abuttingthe side wall, screw threaded metallic shells within the adjacent'portions of th-ebranch sleeve and first mentioned sleeve, an insulat` ing plug resting against fthe other endV of the main sleeve and having a centering boss therein, a central recess'in the inner face 'ofV .said plug, a metallic 'bracketseated in said recess, screws' carrying the ce'ntral'coutactsV and engaging said'bracket and a central screw passing through the plug into the bracket.

In testimony whereof, I hereunto allix my signature.

" ISAAC F. GILES. 

